28673919

素因数分解:

$3^4\times {\mathrm{79}}^1\times {\mathrm{4481}}^1$

素因数の和:4572

約数の個数: 20

約数和(自身を含む): 43385760

約数和(自身を除く): 14711841

約数列:

[1, 3, 9, 27, 79, 81, 237, 711, 2133, 4481, 6399, 13443, 40329, 120987, 353999, 362961, 1061997, 3185991, 9557973, 28673919]

約数ペア:

[(1, 28673919), (3, 9557973), (9, 3185991), (27, 1061997), (79, 362961), (81, 353999), (237, 120987), (711, 40329), (2133, 13443), (4481, 6399)]